T-SB-0041-15 June 30, 2015

MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to PurgeVSV Vacuum Line SeparationServiceCategory Engine/Hybrid System

Section Engine Control Market USA

Applicability

YEAR(S) MODEL(S) ADDITIONAL INFORMATION

2012 – 2013 Prius V

2010 – 2013 Prius

SUPERSESSION NOTICE

The information contained in this bulletin supersedes SB No. T-SB-0205-11.

• Applicability has been updated to include 2012 – 2013 model year Prius and Prius V vehicles.

Service Bulletin No. T-SB-0205-11 is Obsolete and any printed versions should be discarded.Be sure to review the entire content of this bulletin before proceeding.

Introduction

Some 2010 – 2013 model year Prius and 2012 – 2013 model year Prius V vehicles may exhibit aMIL “ON” condition with Diagnostic Trouble Code(s) (DTCs) P0A0F (Engine Failed to Start), causedby Purge VSV/PCV line separation from the throttle body housing. One or more of the followingDTCs may also set:

• P3190 (Poor Engine Power)

• P3191 (Engine Does NOT Start)

• P0171 (System Too Lean [Bank One])

Replace the Purge VSV (Vacuum Switching Valve Assembly) and reprogram the Engine ControlModule/ECM (SAE term: Powertrain Control Module/PCM) with the latest calibration to addressthis condition.

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Production Change Information

This bulletin applies to vehicles produced BEFORE the Production Change Effective VINsshown below.

MODEL PLANT PRODUCTION CHANGE EFFECTIVE VIN

Line 1 JTDKN3DU#D0348509Tsutsumi

Line 2 JTDKN3DU#D1669248Prius

Toyota Auto Body JTDKN3DU#D5620883

Prius V Tsutsumi JTDZN3EU#D3278998

Warranty Information

OP CODE DESCRIPTION TIME MODEL MODEL YEAR OFP T1 T2

201089660-4730089660-4730189660-47302

2011 89660-4743089660-47431

Prius

2012 – 2013 89660-47510

EG1300 Replace Purge VSV andReprogram ECM (PCM) Engine 0.8

Prius V 2012 – 2013 89660-4740089660-47401

8C 74

APPLICABLE WARRANTY• For California specification Prius vehicles sold, registered, and operated in the following states:

• California, Connecticut, Maine, Massachusetts, New Jersey, New York, Oregon, RhodeIsland, or Vermont: starting with 2010 MY.

• New Mexico: 2010 – 2011 MY only.

• Maryland: starting with 2011 MY.

• Arizona: 2012 MY only.

This repair is covered under the California Emission Warranty. This warranty is in effect for180 months or 150,000 miles, whichever occurs first, from the vehicle’s in-service date.

• For Prius vehicles sold, registered, and operated in states other than those listed above,and for Prius V vehicles, this repair is covered under the Toyota Federal Emission Warranty.This warranty is in effect for 96 months or 80,000 miles, whichever occurs first, from thevehicle’s in-service date.

• Warranty application is limited to occurrence of the specified condition described inthis bulletin.

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Calibration Information

CALIBRATION IDMODEL MODEL YEAR ENGINE

PREVIOUS NEWVDS

201034715000347151003471520034715300

34715400

2011 3472800034728100 34728200

Prius

2012 – 2013 34734000 34734100

KN3DU

Prius V 2012 – 2013

2ZR-FXE

3472500034725100 34725200 ZN3EU

Parts Information

PART NUMBERMODEL MODEL YEAR

PREVIOUS NEWPART NAME QTY

201089660-4730089660-4730189660-47302

89660-47303 –

2011 89660-4743089660-47431 89660-47432 –

Prius

2012 – 2013 89660-47510 89660-47511 –

Prius V 2012 – 2013 89660-4740089660-47401 89660-47402

Computer, Engine Control(ECM/PCM)

–

25860-37020 Valve Assy, Vacuum Switching 1ALL ALL

00451-00001-LBL Authorized Modification Labels 1

NOTE• The ECM (PCM) should NOT be replaced as part of the Repair Procedure.

• Authorized Modification Labels may be ordered in packages of 25 from the MaterialsDistribution Center (MDC) through Dealer Daily – Dealer Support Materials Orders.

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Required Tools & Equipment

REQUIRED EQUIPMENT SUPPLIER PART NUMBER QTY

Techstream 2.0* TS2UNIT

Techstream LiteADE

TSLITEPDLR011

NOTE

• Only ONE of the Techstream units listed above is required.

• Software version 10.00.029 or later is required.

• Additional Techstream units may be ordered by calling Approved DealerEquipment (ADE) at 1-800-368-6787.

• The Diagnostic Tester is NOT recommended for flash reprogramming.Please use Techstream or an approved J2534 interface to perform flashreprogramming updates. Visit techinfo.toyota.com for more informationregarding J2534 reprogramming.

SPECIAL SERVICE TOOLS (SST) PART NUMBER QTY

GR8 Battery Diagnostic Station* 00002-MCGR8 1

NOTEAdditional SSTs may be ordered by calling 1-800-933-8335.

* Essential SST.

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Repair Procedure

1. Inspect for proper installation of the PCV hose and Purge VSV vacuum line at the throttle body.Ensure the vacuum line is secured at the Purge VSV.

If all lines are properly seated, this bulletin does NOT apply. Follow normal diagnostic proceduresper the Repair Manual.

Reinstall and secure any unseated lines, replace the Purge VSV, then proceed to step 2.

Refer to the Technical Information System (TIS), applicable model and model yearRepair Manual:

• 2010 Prius:Engine/Hybrid System – Emission Control – “2ZR-FXE Emission Control: Purge Valve:Removal / Installation”

• 2011 Prius:Engine/Hybrid System – Emission Control – “2ZR-FXE Emission Control: Purge Valve:Removal / Installation”

• 2012 Prius:Engine/Hybrid System – Emission Control – “2ZR-FXE Emission Control: Purge Valve:Removal / Installation”

• 2013 Prius:Engine/Hybrid System – Emission Control – “2ZR-FXE Emission Control: Purge Valve:Removal / Installation”

• 2012 Prius V:Engine/Hybrid System – Emission Control – “2ZR-FXE Emission Control: Purge Valve:Removal / Installation”

• 2013 Prius V:Engine/Hybrid System – Emission Control – “2ZR-FXE Emission Control: Purge Valve:Removal / Installation”

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Repair Procedure (Continued)

2. Check for the Authorized Modifications Label affixed to the vehicle in the location shown inFigure 1 or 2. Confirm if the ECM (PCM) calibration has been updated. If the calibration ID listedis NOT the latest ECM (PCM) calibration — go to step 3.Figure 1. Location of Authorized Modifications Label on 2010 – 2013 Prius

1 Replacement ECM (PCM) Part Number (i.e.,89660-47303)

2 New Calibration ID(s) (i.e., 34715400)

3 Dealer Code

4 Date Completed

5 This SB Number

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Repair Procedure (Continued)

Figure 2. Location of Authorized Modifications Label on 2012 – 2013 Prius V

1 Replacement ECM (PCM) Part Number (i.e.,89660-47403)

2 New Calibration ID(s) (i.e., 34725200)

3 Dealer Code

4 Date Completed

5 This SB Number

3. Flash reprogram the ECM (PCM).

NOTE• The GR8 Battery Diagnostic Station MUST be used in Power Supply Mode to maintain

battery voltage at 13.5 volts while flash reprogramming the vehicle.

• For details on how to use the GR8 Battery Diagnostic Station, refer to theGR8 Instruction Manual located on the Technical Information System (TIS),Diagnostics – Tools & Equipment – Battery Diagnostics.

Follow the procedures outlined in Service Bulletin No. T-SB-0012-13, “Techstream ECU FlashReprogramming Procedure,” and flash the ECM (PCM) with the NEW calibration file update.

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MIL "ON" DTC P0A0F, P3190, P3191, P0171 Due to Purge VSV Vacuum LineSeparation

Repair Procedure (Continued)

4. Install the Authorized Modifications Label.

A. Using a permanent marker, enter the following information on the label:

• ECM part number [Refer to the Parts Information section for the NEW PART NUMBER]

• Calibration ID(s) [Refer to the Calibration Information section for the NEWCALIBRATION ID]

• Dealer Code

• Repair Date

• Change Authority [This bulletin number]

B. Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 1 or 2.The Authorized Modifications Label is available through the MDC, P/N 00451-00001-LBL.

5. Test drive the vehicle to confirm proper vehicle operation.

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